Home / 1,742.40-2,626.41-1,642.02

Finding the Fourth Proportional to 1,742.40, 2,626.41 and 1,642.02

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Solution

The fourth proportional to 1,742.40, 2,626.41 and 1,642.02 is: 2,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.40 : 2,626.41 = 1,642.02 : x
  2. Step 2: Convert to fraction form
    1,742.40/2,626.41 = 1,642.02/x
  3. Step 3: Cross multiply
    1,742.40x = 2,626.41 × 1,642.02
  4. Step 4: Simplify right side
    1,742.40x = 4,312,617.75
  5. Step 5: Solve for x
    x = 4,312,617.75/1,742.40
  6. Step 6: Final answer
    x = 2,475.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.