Home / 2,511.07-3,465.47-1,392.10

Finding the Fourth Proportional to 2,511.07, 3,465.47 and 1,392.10

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Solution

The fourth proportional to 2,511.07, 3,465.47 and 1,392.10 is: 1,921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.07 : 3,465.47 = 1,392.10 : x
  2. Step 2: Convert to fraction form
    2,511.07/3,465.47 = 1,392.10/x
  3. Step 3: Cross multiply
    2,511.07x = 3,465.47 × 1,392.10
  4. Step 4: Simplify right side
    2,511.07x = 4,824,275.60
  5. Step 5: Solve for x
    x = 4,824,275.60/2,511.07
  6. Step 6: Final answer
    x = 1,921.21

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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.