Home / 1,854.66-2,558.69-1,108.20

Finding the Fourth Proportional to 1,854.66, 2,558.69 and 1,108.20

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Solution

The fourth proportional to 1,854.66, 2,558.69 and 1,108.20 is: 1,528.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.66 : 2,558.69 = 1,108.20 : x
  2. Step 2: Convert to fraction form
    1,854.66/2,558.69 = 1,108.20/x
  3. Step 3: Cross multiply
    1,854.66x = 2,558.69 × 1,108.20
  4. Step 4: Simplify right side
    1,854.66x = 2,835,534.08
  5. Step 5: Solve for x
    x = 2,835,534.08/1,854.66
  6. Step 6: Final answer
    x = 1,528.87

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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.