Home / 5,254.34-7,880.76-1,555.61

Finding the Fourth Proportional to 5,254.34, 7,880.76 and 1,555.61

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Solution

The fourth proportional to 5,254.34, 7,880.76 and 1,555.61 is: 2,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.34 : 7,880.76 = 1,555.61 : x
  2. Step 2: Convert to fraction form
    5,254.34/7,880.76 = 1,555.61/x
  3. Step 3: Cross multiply
    5,254.34x = 7,880.76 × 1,555.61
  4. Step 4: Simplify right side
    5,254.34x = 12,259,349.66
  5. Step 5: Solve for x
    x = 12,259,349.66/5,254.34
  6. Step 6: Final answer
    x = 2,333.19

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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.