Home / 1,758.13-2,637.45-525.40

Finding the Fourth Proportional to 1,758.13, 2,637.45 and 525.40

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Solution

The fourth proportional to 1,758.13, 2,637.45 and 525.40 is: 788.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.13 : 2,637.45 = 525.40 : x
  2. Step 2: Convert to fraction form
    1,758.13/2,637.45 = 525.40/x
  3. Step 3: Cross multiply
    1,758.13x = 2,637.45 × 525.40
  4. Step 4: Simplify right side
    1,758.13x = 1,385,716.23
  5. Step 5: Solve for x
    x = 1,385,716.23/1,758.13
  6. Step 6: Final answer
    x = 788.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.