Home / 3,145.18-4,681.82-3,098.47

Finding the Fourth Proportional to 3,145.18, 4,681.82 and 3,098.47

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Solution

The fourth proportional to 3,145.18, 4,681.82 and 3,098.47 is: 4,612.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.18 : 4,681.82 = 3,098.47 : x
  2. Step 2: Convert to fraction form
    3,145.18/4,681.82 = 3,098.47/x
  3. Step 3: Cross multiply
    3,145.18x = 4,681.82 × 3,098.47
  4. Step 4: Simplify right side
    3,145.18x = 14,506,478.82
  5. Step 5: Solve for x
    x = 14,506,478.82/3,145.18
  6. Step 6: Final answer
    x = 4,612.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.