Home / 7,045.20-9,722.55-3,858.67

Finding the Fourth Proportional to 7,045.20, 9,722.55 and 3,858.67

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Solution

The fourth proportional to 7,045.20, 9,722.55 and 3,858.67 is: 5,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.20 : 9,722.55 = 3,858.67 : x
  2. Step 2: Convert to fraction form
    7,045.20/9,722.55 = 3,858.67/x
  3. Step 3: Cross multiply
    7,045.20x = 9,722.55 × 3,858.67
  4. Step 4: Simplify right side
    7,045.20x = 37,516,044.10
  5. Step 5: Solve for x
    x = 37,516,044.10/7,045.20
  6. Step 6: Final answer
    x = 5,325.05

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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.