Home / 3,430.95-5,146.29-2,387.94

Finding the Fourth Proportional to 3,430.95, 5,146.29 and 2,387.94

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Solution

The fourth proportional to 3,430.95, 5,146.29 and 2,387.94 is: 3,581.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.95 : 5,146.29 = 2,387.94 : x
  2. Step 2: Convert to fraction form
    3,430.95/5,146.29 = 2,387.94/x
  3. Step 3: Cross multiply
    3,430.95x = 5,146.29 × 2,387.94
  4. Step 4: Simplify right side
    3,430.95x = 12,289,031.74
  5. Step 5: Solve for x
    x = 12,289,031.74/3,430.95
  6. Step 6: Final answer
    x = 3,581.82

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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.