Home / 3,117.92-4,303.28-1,859.05

Finding the Fourth Proportional to 3,117.92, 4,303.28 and 1,859.05

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Solution

The fourth proportional to 3,117.92, 4,303.28 and 1,859.05 is: 2,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.92 : 4,303.28 = 1,859.05 : x
  2. Step 2: Convert to fraction form
    3,117.92/4,303.28 = 1,859.05/x
  3. Step 3: Cross multiply
    3,117.92x = 4,303.28 × 1,859.05
  4. Step 4: Simplify right side
    3,117.92x = 8,000,003.39
  5. Step 5: Solve for x
    x = 8,000,003.39/3,117.92
  6. Step 6: Final answer
    x = 2,565.82

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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.