Home / 7,074.89-10,612.32-1,880.76

Finding the Fourth Proportional to 7,074.89, 10,612.32 and 1,880.76

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Solution

The fourth proportional to 7,074.89, 10,612.32 and 1,880.76 is: 2,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.89 : 10,612.32 = 1,880.76 : x
  2. Step 2: Convert to fraction form
    7,074.89/10,612.32 = 1,880.76/x
  3. Step 3: Cross multiply
    7,074.89x = 10,612.32 × 1,880.76
  4. Step 4: Simplify right side
    7,074.89x = 19,959,222.26
  5. Step 5: Solve for x
    x = 19,959,222.26/7,074.89
  6. Step 6: Final answer
    x = 2,821.14

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.