Home / 1,680.30-2,529.32-1,532.70

Finding the Fourth Proportional to 1,680.30, 2,529.32 and 1,532.70

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Solution

The fourth proportional to 1,680.30, 2,529.32 and 1,532.70 is: 2,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.30 : 2,529.32 = 1,532.70 : x
  2. Step 2: Convert to fraction form
    1,680.30/2,529.32 = 1,532.70/x
  3. Step 3: Cross multiply
    1,680.30x = 2,529.32 × 1,532.70
  4. Step 4: Simplify right side
    1,680.30x = 3,876,688.76
  5. Step 5: Solve for x
    x = 3,876,688.76/1,680.30
  6. Step 6: Final answer
    x = 2,307.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.