Home / 2,897.16-4,345.76-817.36

Finding the Fourth Proportional to 2,897.16, 4,345.76 and 817.36

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Solution

The fourth proportional to 2,897.16, 4,345.76 and 817.36 is: 1,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.16 : 4,345.76 = 817.36 : x
  2. Step 2: Convert to fraction form
    2,897.16/4,345.76 = 817.36/x
  3. Step 3: Cross multiply
    2,897.16x = 4,345.76 × 817.36
  4. Step 4: Simplify right side
    2,897.16x = 3,552,050.39
  5. Step 5: Solve for x
    x = 3,552,050.39/2,897.16
  6. Step 6: Final answer
    x = 1,226.05

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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.