Home / 5,386.17-7,436.60-4,125

Finding the Fourth Proportional to 5,386.17, 7,436.60 and 4,125

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Solution

The fourth proportional to 5,386.17, 7,436.60 and 4,125 is: 5,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.17 : 7,436.60 = 4,125 : x
  2. Step 2: Convert to fraction form
    5,386.17/7,436.60 = 4,125/x
  3. Step 3: Cross multiply
    5,386.17x = 7,436.60 × 4,125
  4. Step 4: Simplify right side
    5,386.17x = 30,675,985.31
  5. Step 5: Solve for x
    x = 30,675,985.31/5,386.17
  6. Step 6: Final answer
    x = 5,695.32

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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.