Home / 1,943.46-2,915.63-710.87

Finding the Fourth Proportional to 1,943.46, 2,915.63 and 710.87

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Solution

The fourth proportional to 1,943.46, 2,915.63 and 710.87 is: 1,066.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.46 : 2,915.63 = 710.87 : x
  2. Step 2: Convert to fraction form
    1,943.46/2,915.63 = 710.87/x
  3. Step 3: Cross multiply
    1,943.46x = 2,915.63 × 710.87
  4. Step 4: Simplify right side
    1,943.46x = 2,072,621.10
  5. Step 5: Solve for x
    x = 2,072,621.10/1,943.46
  6. Step 6: Final answer
    x = 1,066.46

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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.