Home / 2,259.19-3,117.80-1,419.58

Finding the Fourth Proportional to 2,259.19, 3,117.80 and 1,419.58

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Solution

The fourth proportional to 2,259.19, 3,117.80 and 1,419.58 is: 1,959.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.19 : 3,117.80 = 1,419.58 : x
  2. Step 2: Convert to fraction form
    2,259.19/3,117.80 = 1,419.58/x
  3. Step 3: Cross multiply
    2,259.19x = 3,117.80 × 1,419.58
  4. Step 4: Simplify right side
    2,259.19x = 4,425,955.22
  5. Step 5: Solve for x
    x = 4,425,955.22/2,259.19
  6. Step 6: Final answer
    x = 1,959.09

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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.