Home / 3,013.95-4,159.65-1,687.74

Finding the Fourth Proportional to 3,013.95, 4,159.65 and 1,687.74

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Solution

The fourth proportional to 3,013.95, 4,159.65 and 1,687.74 is: 2,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.95 : 4,159.65 = 1,687.74 : x
  2. Step 2: Convert to fraction form
    3,013.95/4,159.65 = 1,687.74/x
  3. Step 3: Cross multiply
    3,013.95x = 4,159.65 × 1,687.74
  4. Step 4: Simplify right side
    3,013.95x = 7,020,407.69
  5. Step 5: Solve for x
    x = 7,020,407.69/3,013.95
  6. Step 6: Final answer
    x = 2,329.30

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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.