Home / 1,747.60-2,621.40-514.96

Finding the Fourth Proportional to 1,747.60, 2,621.40 and 514.96

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Solution

The fourth proportional to 1,747.60, 2,621.40 and 514.96 is: 772.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.60 : 2,621.40 = 514.96 : x
  2. Step 2: Convert to fraction form
    1,747.60/2,621.40 = 514.96/x
  3. Step 3: Cross multiply
    1,747.60x = 2,621.40 × 514.96
  4. Step 4: Simplify right side
    1,747.60x = 1,349,916.14
  5. Step 5: Solve for x
    x = 1,349,916.14/1,747.60
  6. Step 6: Final answer
    x = 772.44

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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.