Home / 2,157.48-2,975.70-1,569.96

Finding the Fourth Proportional to 2,157.48, 2,975.70 and 1,569.96

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Solution

The fourth proportional to 2,157.48, 2,975.70 and 1,569.96 is: 2,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.48 : 2,975.70 = 1,569.96 : x
  2. Step 2: Convert to fraction form
    2,157.48/2,975.70 = 1,569.96/x
  3. Step 3: Cross multiply
    2,157.48x = 2,975.70 × 1,569.96
  4. Step 4: Simplify right side
    2,157.48x = 4,671,729.97
  5. Step 5: Solve for x
    x = 4,671,729.97/2,157.48
  6. Step 6: Final answer
    x = 2,165.36

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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.