Home / 2,657.72-3,985.24-1,547.49

Finding the Fourth Proportional to 2,657.72, 3,985.24 and 1,547.49

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Solution

The fourth proportional to 2,657.72, 3,985.24 and 1,547.49 is: 2,320.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.72 : 3,985.24 = 1,547.49 : x
  2. Step 2: Convert to fraction form
    2,657.72/3,985.24 = 1,547.49/x
  3. Step 3: Cross multiply
    2,657.72x = 3,985.24 × 1,547.49
  4. Step 4: Simplify right side
    2,657.72x = 6,167,125.24
  5. Step 5: Solve for x
    x = 6,167,125.24/2,657.72
  6. Step 6: Final answer
    x = 2,320.46

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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.