Home / 2,511.15-3,465.42-1,392.10

Finding the Fourth Proportional to 2,511.15, 3,465.42 and 1,392.10

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Solution

The fourth proportional to 2,511.15, 3,465.42 and 1,392.10 is: 1,921.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.15 : 3,465.42 = 1,392.10 : x
  2. Step 2: Convert to fraction form
    2,511.15/3,465.42 = 1,392.10/x
  3. Step 3: Cross multiply
    2,511.15x = 3,465.42 × 1,392.10
  4. Step 4: Simplify right side
    2,511.15x = 4,824,210.29
  5. Step 5: Solve for x
    x = 4,824,210.29/2,511.15
  6. Step 6: Final answer
    x = 1,921.12

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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.