Home / 5,225.81-7,838.55-1,330.20

Finding the Fourth Proportional to 5,225.81, 7,838.55 and 1,330.20

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Solution

The fourth proportional to 5,225.81, 7,838.55 and 1,330.20 is: 1,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.81 : 7,838.55 = 1,330.20 : x
  2. Step 2: Convert to fraction form
    5,225.81/7,838.55 = 1,330.20/x
  3. Step 3: Cross multiply
    5,225.81x = 7,838.55 × 1,330.20
  4. Step 4: Simplify right side
    5,225.81x = 10,426,839.21
  5. Step 5: Solve for x
    x = 10,426,839.21/5,225.81
  6. Step 6: Final answer
    x = 1,995.26

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1.5x scale

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.