Home / 5,315.41-7,972.98-1,617.49

Finding the Fourth Proportional to 5,315.41, 7,972.98 and 1,617.49

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Solution

The fourth proportional to 5,315.41, 7,972.98 and 1,617.49 is: 2,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.41 : 7,972.98 = 1,617.49 : x
  2. Step 2: Convert to fraction form
    5,315.41/7,972.98 = 1,617.49/x
  3. Step 3: Cross multiply
    5,315.41x = 7,972.98 × 1,617.49
  4. Step 4: Simplify right side
    5,315.41x = 12,896,215.42
  5. Step 5: Solve for x
    x = 12,896,215.42/5,315.41
  6. Step 6: Final answer
    x = 2,426.19

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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.