Home / 2,419.81-3,339.29-1,357.59

Finding the Fourth Proportional to 2,419.81, 3,339.29 and 1,357.59

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Solution

The fourth proportional to 2,419.81, 3,339.29 and 1,357.59 is: 1,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.81 : 3,339.29 = 1,357.59 : x
  2. Step 2: Convert to fraction form
    2,419.81/3,339.29 = 1,357.59/x
  3. Step 3: Cross multiply
    2,419.81x = 3,339.29 × 1,357.59
  4. Step 4: Simplify right side
    2,419.81x = 4,533,402.63
  5. Step 5: Solve for x
    x = 4,533,402.63/2,419.81
  6. Step 6: Final answer
    x = 1,873.46

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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.