Home / 3,426.81-4,728.99-1,854.90

Finding the Fourth Proportional to 3,426.81, 4,728.99 and 1,854.90

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Solution

The fourth proportional to 3,426.81, 4,728.99 and 1,854.90 is: 2,559.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.81 : 4,728.99 = 1,854.90 : x
  2. Step 2: Convert to fraction form
    3,426.81/4,728.99 = 1,854.90/x
  3. Step 3: Cross multiply
    3,426.81x = 4,728.99 × 1,854.90
  4. Step 4: Simplify right side
    3,426.81x = 8,771,803.55
  5. Step 5: Solve for x
    x = 8,771,803.55/3,426.81
  6. Step 6: Final answer
    x = 2,559.76

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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.