Home / 1,814.40-2,502.45-1,535.40

Finding the Fourth Proportional to 1,814.40, 2,502.45 and 1,535.40

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Solution

The fourth proportional to 1,814.40, 2,502.45 and 1,535.40 is: 2,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.40 : 2,502.45 = 1,535.40 : x
  2. Step 2: Convert to fraction form
    1,814.40/2,502.45 = 1,535.40/x
  3. Step 3: Cross multiply
    1,814.40x = 2,502.45 × 1,535.40
  4. Step 4: Simplify right side
    1,814.40x = 3,842,261.73
  5. Step 5: Solve for x
    x = 3,842,261.73/1,814.40
  6. Step 6: Final answer
    x = 2,117.65

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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.