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Finding the Fourth Proportional to 3,545.61, 4,892.86 and 1,973.67

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Solution

The fourth proportional to 3,545.61, 4,892.86 and 1,973.67 is: 2,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.61 : 4,892.86 = 1,973.67 : x
  2. Step 2: Convert to fraction form
    3,545.61/4,892.86 = 1,973.67/x
  3. Step 3: Cross multiply
    3,545.61x = 4,892.86 × 1,973.67
  4. Step 4: Simplify right side
    3,545.61x = 9,656,881.13
  5. Step 5: Solve for x
    x = 9,656,881.13/3,545.61
  6. Step 6: Final answer
    x = 2,723.62

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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.