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Finding the Fourth Proportional to 4,673.97, 7,010.88 and 1,389.28

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Solution

The fourth proportional to 4,673.97, 7,010.88 and 1,389.28 is: 2,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,673.97 : 7,010.88 = 1,389.28 : x
  2. Step 2: Convert to fraction form
    4,673.97/7,010.88 = 1,389.28/x
  3. Step 3: Cross multiply
    4,673.97x = 7,010.88 × 1,389.28
  4. Step 4: Simplify right side
    4,673.97x = 9,740,075.37
  5. Step 5: Solve for x
    x = 9,740,075.37/4,673.97
  6. Step 6: Final answer
    x = 2,083.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.