Home / 2,923.80-4,386.40-976.02

Finding the Fourth Proportional to 2,923.80, 4,386.40 and 976.02

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Solution

The fourth proportional to 2,923.80, 4,386.40 and 976.02 is: 1,464.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.80 : 4,386.40 = 976.02 : x
  2. Step 2: Convert to fraction form
    2,923.80/4,386.40 = 976.02/x
  3. Step 3: Cross multiply
    2,923.80x = 4,386.40 × 976.02
  4. Step 4: Simplify right side
    2,923.80x = 4,281,214.13
  5. Step 5: Solve for x
    x = 4,281,214.13/2,923.80
  6. Step 6: Final answer
    x = 1,464.26

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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.