Home / 3,545.87-5,315.51-1,570.45

Finding the Fourth Proportional to 3,545.87, 5,315.51 and 1,570.45

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Solution

The fourth proportional to 3,545.87, 5,315.51 and 1,570.45 is: 2,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.87 : 5,315.51 = 1,570.45 : x
  2. Step 2: Convert to fraction form
    3,545.87/5,315.51 = 1,570.45/x
  3. Step 3: Cross multiply
    3,545.87x = 5,315.51 × 1,570.45
  4. Step 4: Simplify right side
    3,545.87x = 8,347,742.68
  5. Step 5: Solve for x
    x = 8,347,742.68/3,545.87
  6. Step 6: Final answer
    x = 2,354.22

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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.