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Finding the Fourth Proportional to 1,707.49, 2,561.28 and 474.99

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Solution

The fourth proportional to 1,707.49, 2,561.28 and 474.99 is: 712.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.49 : 2,561.28 = 474.99 : x
  2. Step 2: Convert to fraction form
    1,707.49/2,561.28 = 474.99/x
  3. Step 3: Cross multiply
    1,707.49x = 2,561.28 × 474.99
  4. Step 4: Simplify right side
    1,707.49x = 1,216,582.39
  5. Step 5: Solve for x
    x = 1,216,582.39/1,707.49
  6. Step 6: Final answer
    x = 712.50

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Double scale
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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.