Home / 5,705.12-7,873.65-4,113.08

Finding the Fourth Proportional to 5,705.12, 7,873.65 and 4,113.08

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Solution

The fourth proportional to 5,705.12, 7,873.65 and 4,113.08 is: 5,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.12 : 7,873.65 = 4,113.08 : x
  2. Step 2: Convert to fraction form
    5,705.12/7,873.65 = 4,113.08/x
  3. Step 3: Cross multiply
    5,705.12x = 7,873.65 × 4,113.08
  4. Step 4: Simplify right side
    5,705.12x = 32,384,952.34
  5. Step 5: Solve for x
    x = 32,384,952.34/5,705.12
  6. Step 6: Final answer
    x = 5,676.47

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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.