Home / 4,580.78-6,870.40-1,293.30

Finding the Fourth Proportional to 4,580.78, 6,870.40 and 1,293.30

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Solution

The fourth proportional to 4,580.78, 6,870.40 and 1,293.30 is: 1,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,580.78 : 6,870.40 = 1,293.30 : x
  2. Step 2: Convert to fraction form
    4,580.78/6,870.40 = 1,293.30/x
  3. Step 3: Cross multiply
    4,580.78x = 6,870.40 × 1,293.30
  4. Step 4: Simplify right side
    4,580.78x = 8,885,447.50
  5. Step 5: Solve for x
    x = 8,885,447.50/4,580.78
  6. Step 6: Final answer
    x = 1,939.72

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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.