Home / 5,777.26-8,666.10-1,831.20

Finding the Fourth Proportional to 5,777.26, 8,666.10 and 1,831.20

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Solution

The fourth proportional to 5,777.26, 8,666.10 and 1,831.20 is: 2,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.26 : 8,666.10 = 1,831.20 : x
  2. Step 2: Convert to fraction form
    5,777.26/8,666.10 = 1,831.20/x
  3. Step 3: Cross multiply
    5,777.26x = 8,666.10 × 1,831.20
  4. Step 4: Simplify right side
    5,777.26x = 15,869,362.32
  5. Step 5: Solve for x
    x = 15,869,362.32/5,777.26
  6. Step 6: Final answer
    x = 2,746.87

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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.