Home / 2,816.40-4,222.52-1,948.24

Finding the Fourth Proportional to 2,816.40, 4,222.52 and 1,948.24

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Solution

The fourth proportional to 2,816.40, 4,222.52 and 1,948.24 is: 2,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.40 : 4,222.52 = 1,948.24 : x
  2. Step 2: Convert to fraction form
    2,816.40/4,222.52 = 1,948.24/x
  3. Step 3: Cross multiply
    2,816.40x = 4,222.52 × 1,948.24
  4. Step 4: Simplify right side
    2,816.40x = 8,226,482.36
  5. Step 5: Solve for x
    x = 8,226,482.36/2,816.40
  6. Step 6: Final answer
    x = 2,920.92

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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.