Home / 2,931.28-4,043.88-1,751.76

Finding the Fourth Proportional to 2,931.28, 4,043.88 and 1,751.76

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Solution

The fourth proportional to 2,931.28, 4,043.88 and 1,751.76 is: 2,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.28 : 4,043.88 = 1,751.76 : x
  2. Step 2: Convert to fraction form
    2,931.28/4,043.88 = 1,751.76/x
  3. Step 3: Cross multiply
    2,931.28x = 4,043.88 × 1,751.76
  4. Step 4: Simplify right side
    2,931.28x = 7,083,907.23
  5. Step 5: Solve for x
    x = 7,083,907.23/2,931.28
  6. Step 6: Final answer
    x = 2,416.66

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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.