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Finding the Fourth Proportional to 1,723.10, 2,417.20 and 1,723.10

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Solution

The fourth proportional to 1,723.10, 2,417.20 and 1,723.10 is: 2,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.10 : 2,417.20 = 1,723.10 : x
  2. Step 2: Convert to fraction form
    1,723.10/2,417.20 = 1,723.10/x
  3. Step 3: Cross multiply
    1,723.10x = 2,417.20 × 1,723.10
  4. Step 4: Simplify right side
    1,723.10x = 4,165,077.32
  5. Step 5: Solve for x
    x = 4,165,077.32/1,723.10
  6. Step 6: Final answer
    x = 2,417.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.