Home / 2,421.42-3,341.61-1,359.26

Finding the Fourth Proportional to 2,421.42, 3,341.61 and 1,359.26

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Solution

The fourth proportional to 2,421.42, 3,341.61 and 1,359.26 is: 1,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.42 : 3,341.61 = 1,359.26 : x
  2. Step 2: Convert to fraction form
    2,421.42/3,341.61 = 1,359.26/x
  3. Step 3: Cross multiply
    2,421.42x = 3,341.61 × 1,359.26
  4. Step 4: Simplify right side
    2,421.42x = 4,542,111.19
  5. Step 5: Solve for x
    x = 4,542,111.19/2,421.42
  6. Step 6: Final answer
    x = 1,875.81

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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.