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Finding the Fourth Proportional to 2,590.07, 3,885.20 and 741.02

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Solution

The fourth proportional to 2,590.07, 3,885.20 and 741.02 is: 1,111.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.07 : 3,885.20 = 741.02 : x
  2. Step 2: Convert to fraction form
    2,590.07/3,885.20 = 741.02/x
  3. Step 3: Cross multiply
    2,590.07x = 3,885.20 × 741.02
  4. Step 4: Simplify right side
    2,590.07x = 2,878,987.77
  5. Step 5: Solve for x
    x = 2,878,987.77/2,590.07
  6. Step 6: Final answer
    x = 1,111.55

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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.