Home / 7,210.20-9,948.34-4,971.36

Finding the Fourth Proportional to 7,210.20, 9,948.34 and 4,971.36

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Solution

The fourth proportional to 7,210.20, 9,948.34 and 4,971.36 is: 6,859.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.20 : 9,948.34 = 4,971.36 : x
  2. Step 2: Convert to fraction form
    7,210.20/9,948.34 = 4,971.36/x
  3. Step 3: Cross multiply
    7,210.20x = 9,948.34 × 4,971.36
  4. Step 4: Simplify right side
    7,210.20x = 49,456,779.54
  5. Step 5: Solve for x
    x = 49,456,779.54/7,210.20
  6. Step 6: Final answer
    x = 6,859.28

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1.5x scale

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.