Home / 7,100.36-10,642.45-4,320.91

Finding the Fourth Proportional to 7,100.36, 10,642.45 and 4,320.91

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Solution

The fourth proportional to 7,100.36, 10,642.45 and 4,320.91 is: 6,476.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.36 : 10,642.45 = 4,320.91 : x
  2. Step 2: Convert to fraction form
    7,100.36/10,642.45 = 4,320.91/x
  3. Step 3: Cross multiply
    7,100.36x = 10,642.45 × 4,320.91
  4. Step 4: Simplify right side
    7,100.36x = 45,984,993.81
  5. Step 5: Solve for x
    x = 45,984,993.81/7,100.36
  6. Step 6: Final answer
    x = 6,476.44

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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.