Home / 1,545.21-2,316.86-571.05

Finding the Fourth Proportional to 1,545.21, 2,316.86 and 571.05

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Solution

The fourth proportional to 1,545.21, 2,316.86 and 571.05 is: 856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.21 : 2,316.86 = 571.05 : x
  2. Step 2: Convert to fraction form
    1,545.21/2,316.86 = 571.05/x
  3. Step 3: Cross multiply
    1,545.21x = 2,316.86 × 571.05
  4. Step 4: Simplify right side
    1,545.21x = 1,323,044.33
  5. Step 5: Solve for x
    x = 1,323,044.33/1,545.21
  6. Step 6: Final answer
    x = 856.22

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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.