Home / 1,724.75-2,587.40-570.77

Finding the Fourth Proportional to 1,724.75, 2,587.40 and 570.77

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Solution

The fourth proportional to 1,724.75, 2,587.40 and 570.77 is: 856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.75 : 2,587.40 = 570.77 : x
  2. Step 2: Convert to fraction form
    1,724.75/2,587.40 = 570.77/x
  3. Step 3: Cross multiply
    1,724.75x = 2,587.40 × 570.77
  4. Step 4: Simplify right side
    1,724.75x = 1,476,807.44
  5. Step 5: Solve for x
    x = 1,476,807.44/1,724.75
  6. Step 6: Final answer
    x = 856.24

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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.