Home / 7,384.40-10,190.28-4,240.40

Finding the Fourth Proportional to 7,384.40, 10,190.28 and 4,240.40

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Solution

The fourth proportional to 7,384.40, 10,190.28 and 4,240.40 is: 5,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.40 : 10,190.28 = 4,240.40 : x
  2. Step 2: Convert to fraction form
    7,384.40/10,190.28 = 4,240.40/x
  3. Step 3: Cross multiply
    7,384.40x = 10,190.28 × 4,240.40
  4. Step 4: Simplify right side
    7,384.40x = 43,210,863.31
  5. Step 5: Solve for x
    x = 43,210,863.31/7,384.40
  6. Step 6: Final answer
    x = 5,851.64

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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.