Home / 6,985.60-10,490.55-3,705.10

Finding the Fourth Proportional to 6,985.60, 10,490.55 and 3,705.10

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Solution

The fourth proportional to 6,985.60, 10,490.55 and 3,705.10 is: 5,564.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.60 : 10,490.55 = 3,705.10 : x
  2. Step 2: Convert to fraction form
    6,985.60/10,490.55 = 3,705.10/x
  3. Step 3: Cross multiply
    6,985.60x = 10,490.55 × 3,705.10
  4. Step 4: Simplify right side
    6,985.60x = 38,868,536.81
  5. Step 5: Solve for x
    x = 38,868,536.81/6,985.60
  6. Step 6: Final answer
    x = 5,564.09

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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.