Home / 7,191.84-9,919.44-5,423.52

Finding the Fourth Proportional to 7,191.84, 9,919.44 and 5,423.52

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Solution

The fourth proportional to 7,191.84, 9,919.44 and 5,423.52 is: 7,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.84 : 9,919.44 = 5,423.52 : x
  2. Step 2: Convert to fraction form
    7,191.84/9,919.44 = 5,423.52/x
  3. Step 3: Cross multiply
    7,191.84x = 9,919.44 × 5,423.52
  4. Step 4: Simplify right side
    7,191.84x = 53,798,281.23
  5. Step 5: Solve for x
    x = 53,798,281.23/7,191.84
  6. Step 6: Final answer
    x = 7,480.46

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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.