Home / 5,707.68-8,555.76-2,378.40

Finding the Fourth Proportional to 5,707.68, 8,555.76 and 2,378.40

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Solution

The fourth proportional to 5,707.68, 8,555.76 and 2,378.40 is: 3,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.68 : 8,555.76 = 2,378.40 : x
  2. Step 2: Convert to fraction form
    5,707.68/8,555.76 = 2,378.40/x
  3. Step 3: Cross multiply
    5,707.68x = 8,555.76 × 2,378.40
  4. Step 4: Simplify right side
    5,707.68x = 20,349,019.58
  5. Step 5: Solve for x
    x = 20,349,019.58/5,707.68
  6. Step 6: Final answer
    x = 3,565.20

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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.