Home / 7,110.48-9,809.58-4,721.61

Finding the Fourth Proportional to 7,110.48, 9,809.58 and 4,721.61

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Solution

The fourth proportional to 7,110.48, 9,809.58 and 4,721.61 is: 6,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.48 : 9,809.58 = 4,721.61 : x
  2. Step 2: Convert to fraction form
    7,110.48/9,809.58 = 4,721.61/x
  3. Step 3: Cross multiply
    7,110.48x = 9,809.58 × 4,721.61
  4. Step 4: Simplify right side
    7,110.48x = 46,317,011.02
  5. Step 5: Solve for x
    x = 46,317,011.02/7,110.48
  6. Step 6: Final answer
    x = 6,513.91

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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.