Home / 7,400.79-10,213.47-4,214.16

Finding the Fourth Proportional to 7,400.79, 10,213.47 and 4,214.16

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Solution

The fourth proportional to 7,400.79, 10,213.47 and 4,214.16 is: 5,815.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.79 : 10,213.47 = 4,214.16 : x
  2. Step 2: Convert to fraction form
    7,400.79/10,213.47 = 4,214.16/x
  3. Step 3: Cross multiply
    7,400.79x = 10,213.47 × 4,214.16
  4. Step 4: Simplify right side
    7,400.79x = 43,041,196.74
  5. Step 5: Solve for x
    x = 43,041,196.74/7,400.79
  6. Step 6: Final answer
    x = 5,815.76

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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.