Home / 6,139.91-8,465.63-4,777.57

Finding the Fourth Proportional to 6,139.91, 8,465.63 and 4,777.57

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Solution

The fourth proportional to 6,139.91, 8,465.63 and 4,777.57 is: 6,587.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.91 : 8,465.63 = 4,777.57 : x
  2. Step 2: Convert to fraction form
    6,139.91/8,465.63 = 4,777.57/x
  3. Step 3: Cross multiply
    6,139.91x = 8,465.63 × 4,777.57
  4. Step 4: Simplify right side
    6,139.91x = 40,445,139.92
  5. Step 5: Solve for x
    x = 40,445,139.92/6,139.91
  6. Step 6: Final answer
    x = 6,587.26

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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.