Home / 2,904.80-4,007.22-1,856.12

Finding the Fourth Proportional to 2,904.80, 4,007.22 and 1,856.12

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Solution

The fourth proportional to 2,904.80, 4,007.22 and 1,856.12 is: 2,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.80 : 4,007.22 = 1,856.12 : x
  2. Step 2: Convert to fraction form
    2,904.80/4,007.22 = 1,856.12/x
  3. Step 3: Cross multiply
    2,904.80x = 4,007.22 × 1,856.12
  4. Step 4: Simplify right side
    2,904.80x = 7,437,881.19
  5. Step 5: Solve for x
    x = 7,437,881.19/2,904.80
  6. Step 6: Final answer
    x = 2,560.55

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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.