Home / 2,931.58-4,047.33-1,937.71

Finding the Fourth Proportional to 2,931.58, 4,047.33 and 1,937.71

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Solution

The fourth proportional to 2,931.58, 4,047.33 and 1,937.71 is: 2,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.58 : 4,047.33 = 1,937.71 : x
  2. Step 2: Convert to fraction form
    2,931.58/4,047.33 = 1,937.71/x
  3. Step 3: Cross multiply
    2,931.58x = 4,047.33 × 1,937.71
  4. Step 4: Simplify right side
    2,931.58x = 7,842,551.81
  5. Step 5: Solve for x
    x = 7,842,551.81/2,931.58
  6. Step 6: Final answer
    x = 2,675.20

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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.