Home / 1,715.30-2,572.95-416.76

Finding the Fourth Proportional to 1,715.30, 2,572.95 and 416.76

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Solution

The fourth proportional to 1,715.30, 2,572.95 and 416.76 is: 625.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.30 : 2,572.95 = 416.76 : x
  2. Step 2: Convert to fraction form
    1,715.30/2,572.95 = 416.76/x
  3. Step 3: Cross multiply
    1,715.30x = 2,572.95 × 416.76
  4. Step 4: Simplify right side
    1,715.30x = 1,072,302.64
  5. Step 5: Solve for x
    x = 1,072,302.64/1,715.30
  6. Step 6: Final answer
    x = 625.14

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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.