Home / 2,988.90-4,482.36-1,040.58

Finding the Fourth Proportional to 2,988.90, 4,482.36 and 1,040.58

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Solution

The fourth proportional to 2,988.90, 4,482.36 and 1,040.58 is: 1,560.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.90 : 4,482.36 = 1,040.58 : x
  2. Step 2: Convert to fraction form
    2,988.90/4,482.36 = 1,040.58/x
  3. Step 3: Cross multiply
    2,988.90x = 4,482.36 × 1,040.58
  4. Step 4: Simplify right side
    2,988.90x = 4,664,254.17
  5. Step 5: Solve for x
    x = 4,664,254.17/2,988.90
  6. Step 6: Final answer
    x = 1,560.53

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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.