Home / 2,430.81-3,354.50-1,368.61

Finding the Fourth Proportional to 2,430.81, 3,354.50 and 1,368.61

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Solution

The fourth proportional to 2,430.81, 3,354.50 and 1,368.61 is: 1,888.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.81 : 3,354.50 = 1,368.61 : x
  2. Step 2: Convert to fraction form
    2,430.81/3,354.50 = 1,368.61/x
  3. Step 3: Cross multiply
    2,430.81x = 3,354.50 × 1,368.61
  4. Step 4: Simplify right side
    2,430.81x = 4,590,997.28
  5. Step 5: Solve for x
    x = 4,590,997.28/2,430.81
  6. Step 6: Final answer
    x = 1,888.67

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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.