Home / 2,988.92-4,483.98-1,140.05

Finding the Fourth Proportional to 2,988.92, 4,483.98 and 1,140.05

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Solution

The fourth proportional to 2,988.92, 4,483.98 and 1,140.05 is: 1,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.92 : 4,483.98 = 1,140.05 : x
  2. Step 2: Convert to fraction form
    2,988.92/4,483.98 = 1,140.05/x
  3. Step 3: Cross multiply
    2,988.92x = 4,483.98 × 1,140.05
  4. Step 4: Simplify right side
    2,988.92x = 5,111,938.98
  5. Step 5: Solve for x
    x = 5,111,938.98/2,988.92
  6. Step 6: Final answer
    x = 1,710.30

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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.