Home / 3,312.98-4,572.27-1,987.01

Finding the Fourth Proportional to 3,312.98, 4,572.27 and 1,987.01

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Solution

The fourth proportional to 3,312.98, 4,572.27 and 1,987.01 is: 2,742.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.98 : 4,572.27 = 1,987.01 : x
  2. Step 2: Convert to fraction form
    3,312.98/4,572.27 = 1,987.01/x
  3. Step 3: Cross multiply
    3,312.98x = 4,572.27 × 1,987.01
  4. Step 4: Simplify right side
    3,312.98x = 9,085,123.35
  5. Step 5: Solve for x
    x = 9,085,123.35/3,312.98
  6. Step 6: Final answer
    x = 2,742.29

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1.5x scale

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.