Home / 3,130.01-4,315.79-2,538.71

Finding the Fourth Proportional to 3,130.01, 4,315.79 and 2,538.71

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Solution

The fourth proportional to 3,130.01, 4,315.79 and 2,538.71 is: 3,500.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.01 : 4,315.79 = 2,538.71 : x
  2. Step 2: Convert to fraction form
    3,130.01/4,315.79 = 2,538.71/x
  3. Step 3: Cross multiply
    3,130.01x = 4,315.79 × 2,538.71
  4. Step 4: Simplify right side
    3,130.01x = 10,956,526.54
  5. Step 5: Solve for x
    x = 10,956,526.54/3,130.01
  6. Step 6: Final answer
    x = 3,500.48

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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.