Home / 2,430.42-3,643.08-1,276.98

Finding the Fourth Proportional to 2,430.42, 3,643.08 and 1,276.98

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Solution

The fourth proportional to 2,430.42, 3,643.08 and 1,276.98 is: 1,914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.42 : 3,643.08 = 1,276.98 : x
  2. Step 2: Convert to fraction form
    2,430.42/3,643.08 = 1,276.98/x
  3. Step 3: Cross multiply
    2,430.42x = 3,643.08 × 1,276.98
  4. Step 4: Simplify right side
    2,430.42x = 4,652,140.30
  5. Step 5: Solve for x
    x = 4,652,140.30/2,430.42
  6. Step 6: Final answer
    x = 1,914.13

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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.