Home / 5,224.15-7,836.23-1,275.40

Finding the Fourth Proportional to 5,224.15, 7,836.23 and 1,275.40

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Solution

The fourth proportional to 5,224.15, 7,836.23 and 1,275.40 is: 1,913.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,224.15 : 7,836.23 = 1,275.40 : x
  2. Step 2: Convert to fraction form
    5,224.15/7,836.23 = 1,275.40/x
  3. Step 3: Cross multiply
    5,224.15x = 7,836.23 × 1,275.40
  4. Step 4: Simplify right side
    5,224.15x = 9,994,289.47
  5. Step 5: Solve for x
    x = 9,994,289.47/5,224.15
  6. Step 6: Final answer
    x = 1,913.10

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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.