Home / 1,360.42-2,038.35-1,309.86

Finding the Fourth Proportional to 1,360.42, 2,038.35 and 1,309.86

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Solution

The fourth proportional to 1,360.42, 2,038.35 and 1,309.86 is: 1,962.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.42 : 2,038.35 = 1,309.86 : x
  2. Step 2: Convert to fraction form
    1,360.42/2,038.35 = 1,309.86/x
  3. Step 3: Cross multiply
    1,360.42x = 2,038.35 × 1,309.86
  4. Step 4: Simplify right side
    1,360.42x = 2,669,953.13
  5. Step 5: Solve for x
    x = 2,669,953.13/1,360.42
  6. Step 6: Final answer
    x = 1,962.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.