Home / 5,705.34-7,870.92-3,315.13

Finding the Fourth Proportional to 5,705.34, 7,870.92 and 3,315.13

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Solution

The fourth proportional to 5,705.34, 7,870.92 and 3,315.13 is: 4,573.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.34 : 7,870.92 = 3,315.13 : x
  2. Step 2: Convert to fraction form
    5,705.34/7,870.92 = 3,315.13/x
  3. Step 3: Cross multiply
    5,705.34x = 7,870.92 × 3,315.13
  4. Step 4: Simplify right side
    5,705.34x = 26,093,109.56
  5. Step 5: Solve for x
    x = 26,093,109.56/5,705.34
  6. Step 6: Final answer
    x = 4,573.46

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Half scale
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Double scale
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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.