Home / 5,315.52-7,973.28-1,617.80

Finding the Fourth Proportional to 5,315.52, 7,973.28 and 1,617.80

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Solution

The fourth proportional to 5,315.52, 7,973.28 and 1,617.80 is: 2,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.52 : 7,973.28 = 1,617.80 : x
  2. Step 2: Convert to fraction form
    5,315.52/7,973.28 = 1,617.80/x
  3. Step 3: Cross multiply
    5,315.52x = 7,973.28 × 1,617.80
  4. Step 4: Simplify right side
    5,315.52x = 12,899,172.38
  5. Step 5: Solve for x
    x = 12,899,172.38/5,315.52
  6. Step 6: Final answer
    x = 2,426.70

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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.