Home / 3,545.12-5,317.04-947.44

Finding the Fourth Proportional to 3,545.12, 5,317.04 and 947.44

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Solution

The fourth proportional to 3,545.12, 5,317.04 and 947.44 is: 1,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.12 : 5,317.04 = 947.44 : x
  2. Step 2: Convert to fraction form
    3,545.12/5,317.04 = 947.44/x
  3. Step 3: Cross multiply
    3,545.12x = 5,317.04 × 947.44
  4. Step 4: Simplify right side
    3,545.12x = 5,037,576.38
  5. Step 5: Solve for x
    x = 5,037,576.38/3,545.12
  6. Step 6: Final answer
    x = 1,420.99

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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.