Home / 5,790.20-8,685.23-1,407.66

Finding the Fourth Proportional to 5,790.20, 8,685.23 and 1,407.66

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Solution

The fourth proportional to 5,790.20, 8,685.23 and 1,407.66 is: 2,111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.20 : 8,685.23 = 1,407.66 : x
  2. Step 2: Convert to fraction form
    5,790.20/8,685.23 = 1,407.66/x
  3. Step 3: Cross multiply
    5,790.20x = 8,685.23 × 1,407.66
  4. Step 4: Simplify right side
    5,790.20x = 12,225,811.25
  5. Step 5: Solve for x
    x = 12,225,811.25/5,790.20
  6. Step 6: Final answer
    x = 2,111.47

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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.