Home / 3,079.02-4,248.90-1,681.77

Finding the Fourth Proportional to 3,079.02, 4,248.90 and 1,681.77

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Solution

The fourth proportional to 3,079.02, 4,248.90 and 1,681.77 is: 2,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.02 : 4,248.90 = 1,681.77 : x
  2. Step 2: Convert to fraction form
    3,079.02/4,248.90 = 1,681.77/x
  3. Step 3: Cross multiply
    3,079.02x = 4,248.90 × 1,681.77
  4. Step 4: Simplify right side
    3,079.02x = 7,145,672.55
  5. Step 5: Solve for x
    x = 7,145,672.55/3,079.02
  6. Step 6: Final answer
    x = 2,320.76

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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.