Home / 1,688.59-2,330.19-1,059.45

Finding the Fourth Proportional to 1,688.59, 2,330.19 and 1,059.45

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Solution

The fourth proportional to 1,688.59, 2,330.19 and 1,059.45 is: 1,462.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.59 : 2,330.19 = 1,059.45 : x
  2. Step 2: Convert to fraction form
    1,688.59/2,330.19 = 1,059.45/x
  3. Step 3: Cross multiply
    1,688.59x = 2,330.19 × 1,059.45
  4. Step 4: Simplify right side
    1,688.59x = 2,468,728.53
  5. Step 5: Solve for x
    x = 2,468,728.53/1,688.59
  6. Step 6: Final answer
    x = 1,462.01

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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.