Home / 2,421-3,341.25-1,373.40

Finding the Fourth Proportional to 2,421, 3,341.25 and 1,373.40

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Solution

The fourth proportional to 2,421, 3,341.25 and 1,373.40 is: 1,895.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421 : 3,341.25 = 1,373.40 : x
  2. Step 2: Convert to fraction form
    2,421/3,341.25 = 1,373.40/x
  3. Step 3: Cross multiply
    2,421x = 3,341.25 × 1,373.40
  4. Step 4: Simplify right side
    2,421x = 4,588,872.75
  5. Step 5: Solve for x
    x = 4,588,872.75/2,421
  6. Step 6: Final answer
    x = 1,895.45

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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.