Home / 1,693.49-2,337.03-947.43

Finding the Fourth Proportional to 1,693.49, 2,337.03 and 947.43

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Solution

The fourth proportional to 1,693.49, 2,337.03 and 947.43 is: 1,307.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.49 : 2,337.03 = 947.43 : x
  2. Step 2: Convert to fraction form
    1,693.49/2,337.03 = 947.43/x
  3. Step 3: Cross multiply
    1,693.49x = 2,337.03 × 947.43
  4. Step 4: Simplify right side
    1,693.49x = 2,214,172.33
  5. Step 5: Solve for x
    x = 2,214,172.33/1,693.49
  6. Step 6: Final answer
    x = 1,307.46

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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.