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Finding the Fourth Proportional to 5,685.16, 7,844 and 3,417.16

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Solution

The fourth proportional to 5,685.16, 7,844 and 3,417.16 is: 4,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.16 : 7,844 = 3,417.16 : x
  2. Step 2: Convert to fraction form
    5,685.16/7,844 = 3,417.16/x
  3. Step 3: Cross multiply
    5,685.16x = 7,844 × 3,417.16
  4. Step 4: Simplify right side
    5,685.16x = 26,804,203.04
  5. Step 5: Solve for x
    x = 26,804,203.04/5,685.16
  6. Step 6: Final answer
    x = 4,714.77

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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.