Home / 2,419.47-3,339.56-1,425.32

Finding the Fourth Proportional to 2,419.47, 3,339.56 and 1,425.32

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Solution

The fourth proportional to 2,419.47, 3,339.56 and 1,425.32 is: 1,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.47 : 3,339.56 = 1,425.32 : x
  2. Step 2: Convert to fraction form
    2,419.47/3,339.56 = 1,425.32/x
  3. Step 3: Cross multiply
    2,419.47x = 3,339.56 × 1,425.32
  4. Step 4: Simplify right side
    2,419.47x = 4,759,953.57
  5. Step 5: Solve for x
    x = 4,759,953.57/2,419.47
  6. Step 6: Final answer
    x = 1,967.35

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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.