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Finding the Fourth Proportional to 1,091.51, 1,506.30 and 594.15

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Solution

The fourth proportional to 1,091.51, 1,506.30 and 594.15 is: 819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.51 : 1,506.30 = 594.15 : x
  2. Step 2: Convert to fraction form
    1,091.51/1,506.30 = 594.15/x
  3. Step 3: Cross multiply
    1,091.51x = 1,506.30 × 594.15
  4. Step 4: Simplify right side
    1,091.51x = 894,968.74
  5. Step 5: Solve for x
    x = 894,968.74/1,091.51
  6. Step 6: Final answer
    x = 819.94

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Double scale
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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.