Home / 1,988.02-2,742.33-1,752.54

Finding the Fourth Proportional to 1,988.02, 2,742.33 and 1,752.54

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Solution

The fourth proportional to 1,988.02, 2,742.33 and 1,752.54 is: 2,417.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.02 : 2,742.33 = 1,752.54 : x
  2. Step 2: Convert to fraction form
    1,988.02/2,742.33 = 1,752.54/x
  3. Step 3: Cross multiply
    1,988.02x = 2,742.33 × 1,752.54
  4. Step 4: Simplify right side
    1,988.02x = 4,806,043.02
  5. Step 5: Solve for x
    x = 4,806,043.02/1,988.02
  6. Step 6: Final answer
    x = 2,417.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.