Home / 1,569.78-2,166.75-1,047.33

Finding the Fourth Proportional to 1,569.78, 2,166.75 and 1,047.33

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Solution

The fourth proportional to 1,569.78, 2,166.75 and 1,047.33 is: 1,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.78 : 2,166.75 = 1,047.33 : x
  2. Step 2: Convert to fraction form
    1,569.78/2,166.75 = 1,047.33/x
  3. Step 3: Cross multiply
    1,569.78x = 2,166.75 × 1,047.33
  4. Step 4: Simplify right side
    1,569.78x = 2,269,302.28
  5. Step 5: Solve for x
    x = 2,269,302.28/1,569.78
  6. Step 6: Final answer
    x = 1,445.62

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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.