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Finding the Fourth Proportional to 2,316.16, 3,476.10 and 856.48

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Solution

The fourth proportional to 2,316.16, 3,476.10 and 856.48 is: 1,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.16 : 3,476.10 = 856.48 : x
  2. Step 2: Convert to fraction form
    2,316.16/3,476.10 = 856.48/x
  3. Step 3: Cross multiply
    2,316.16x = 3,476.10 × 856.48
  4. Step 4: Simplify right side
    2,316.16x = 2,977,210.13
  5. Step 5: Solve for x
    x = 2,977,210.13/2,316.16
  6. Step 6: Final answer
    x = 1,285.41

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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.