Home / 3,013.50-4,158.99-1,687.53

Finding the Fourth Proportional to 3,013.50, 4,158.99 and 1,687.53

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Solution

The fourth proportional to 3,013.50, 4,158.99 and 1,687.53 is: 2,328.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.50 : 4,158.99 = 1,687.53 : x
  2. Step 2: Convert to fraction form
    3,013.50/4,158.99 = 1,687.53/x
  3. Step 3: Cross multiply
    3,013.50x = 4,158.99 × 1,687.53
  4. Step 4: Simplify right side
    3,013.50x = 7,018,420.39
  5. Step 5: Solve for x
    x = 7,018,420.39/3,013.50
  6. Step 6: Final answer
    x = 2,328.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.