Home / 1,715.16-2,572.74-1,641.72

Finding the Fourth Proportional to 1,715.16, 2,572.74 and 1,641.72

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Solution

The fourth proportional to 1,715.16, 2,572.74 and 1,641.72 is: 2,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.16 : 2,572.74 = 1,641.72 : x
  2. Step 2: Convert to fraction form
    1,715.16/2,572.74 = 1,641.72/x
  3. Step 3: Cross multiply
    1,715.16x = 2,572.74 × 1,641.72
  4. Step 4: Simplify right side
    1,715.16x = 4,223,718.71
  5. Step 5: Solve for x
    x = 4,223,718.71/1,715.16
  6. Step 6: Final answer
    x = 2,462.58

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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.