Home / 1,769.90-2,442.30-973.06

Finding the Fourth Proportional to 1,769.90, 2,442.30 and 973.06

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Solution

The fourth proportional to 1,769.90, 2,442.30 and 973.06 is: 1,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.90 : 2,442.30 = 973.06 : x
  2. Step 2: Convert to fraction form
    1,769.90/2,442.30 = 973.06/x
  3. Step 3: Cross multiply
    1,769.90x = 2,442.30 × 973.06
  4. Step 4: Simplify right side
    1,769.90x = 2,376,513.89
  5. Step 5: Solve for x
    x = 2,376,513.89/1,769.90
  6. Step 6: Final answer
    x = 1,342.74

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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.