Home / 5,578.04-7,698.57-4,085.21

Finding the Fourth Proportional to 5,578.04, 7,698.57 and 4,085.21

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Solution

The fourth proportional to 5,578.04, 7,698.57 and 4,085.21 is: 5,638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.04 : 7,698.57 = 4,085.21 : x
  2. Step 2: Convert to fraction form
    5,578.04/7,698.57 = 4,085.21/x
  3. Step 3: Cross multiply
    5,578.04x = 7,698.57 × 4,085.21
  4. Step 4: Simplify right side
    5,578.04x = 31,450,275.15
  5. Step 5: Solve for x
    x = 31,450,275.15/5,578.04
  6. Step 6: Final answer
    x = 5,638.23

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Half scale
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Double scale
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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.