Home / 3,049.16-4,209.65-1,931.06

Finding the Fourth Proportional to 3,049.16, 4,209.65 and 1,931.06

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Solution

The fourth proportional to 3,049.16, 4,209.65 and 1,931.06 is: 2,666.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,049.16 : 4,209.65 = 1,931.06 : x
  2. Step 2: Convert to fraction form
    3,049.16/4,209.65 = 1,931.06/x
  3. Step 3: Cross multiply
    3,049.16x = 4,209.65 × 1,931.06
  4. Step 4: Simplify right side
    3,049.16x = 8,129,082.02
  5. Step 5: Solve for x
    x = 8,129,082.02/3,049.16
  6. Step 6: Final answer
    x = 2,666.01

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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.