Home / 1,788.40-2,681.75-555.83

Finding the Fourth Proportional to 1,788.40, 2,681.75 and 555.83

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Solution

The fourth proportional to 1,788.40, 2,681.75 and 555.83 is: 833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.40 : 2,681.75 = 555.83 : x
  2. Step 2: Convert to fraction form
    1,788.40/2,681.75 = 555.83/x
  3. Step 3: Cross multiply
    1,788.40x = 2,681.75 × 555.83
  4. Step 4: Simplify right side
    1,788.40x = 1,490,598.49
  5. Step 5: Solve for x
    x = 1,490,598.49/1,788.40
  6. Step 6: Final answer
    x = 833.48

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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.