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Finding the Fourth Proportional to 953.48, 1,316.58 and 705.08

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Solution

The fourth proportional to 953.48, 1,316.58 and 705.08 is: 973.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.48 : 1,316.58 = 705.08 : x
  2. Step 2: Convert to fraction form
    953.48/1,316.58 = 705.08/x
  3. Step 3: Cross multiply
    953.48x = 1,316.58 × 705.08
  4. Step 4: Simplify right side
    953.48x = 928,294.23
  5. Step 5: Solve for x
    x = 928,294.23/953.48
  6. Step 6: Final answer
    x = 973.59

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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.