Home / 3,426.31-4,728.30-1,854.40

Finding the Fourth Proportional to 3,426.31, 4,728.30 and 1,854.40

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Solution

The fourth proportional to 3,426.31, 4,728.30 and 1,854.40 is: 2,559.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.31 : 4,728.30 = 1,854.40 : x
  2. Step 2: Convert to fraction form
    3,426.31/4,728.30 = 1,854.40/x
  3. Step 3: Cross multiply
    3,426.31x = 4,728.30 × 1,854.40
  4. Step 4: Simplify right side
    3,426.31x = 8,768,159.52
  5. Step 5: Solve for x
    x = 8,768,159.52/3,426.31
  6. Step 6: Final answer
    x = 2,559.07

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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.