Home / 4,905.30-7,357.95-4,271.70

Finding the Fourth Proportional to 4,905.30, 7,357.95 and 4,271.70

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Solution

The fourth proportional to 4,905.30, 7,357.95 and 4,271.70 is: 6,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.30 : 7,357.95 = 4,271.70 : x
  2. Step 2: Convert to fraction form
    4,905.30/7,357.95 = 4,271.70/x
  3. Step 3: Cross multiply
    4,905.30x = 7,357.95 × 4,271.70
  4. Step 4: Simplify right side
    4,905.30x = 31,430,955.02
  5. Step 5: Solve for x
    x = 31,430,955.02/4,905.30
  6. Step 6: Final answer
    x = 6,407.55

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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.