Home / 1,343.98-2,015.70-370.05

Finding the Fourth Proportional to 1,343.98, 2,015.70 and 370.05

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Solution

The fourth proportional to 1,343.98, 2,015.70 and 370.05 is: 555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.98 : 2,015.70 = 370.05 : x
  2. Step 2: Convert to fraction form
    1,343.98/2,015.70 = 370.05/x
  3. Step 3: Cross multiply
    1,343.98x = 2,015.70 × 370.05
  4. Step 4: Simplify right side
    1,343.98x = 745,909.79
  5. Step 5: Solve for x
    x = 745,909.79/1,343.98
  6. Step 6: Final answer
    x = 555.00

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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.