Home / 1,688.37-2,330.10-1,059.36

Finding the Fourth Proportional to 1,688.37, 2,330.10 and 1,059.36

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Solution

The fourth proportional to 1,688.37, 2,330.10 and 1,059.36 is: 1,462.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.37 : 2,330.10 = 1,059.36 : x
  2. Step 2: Convert to fraction form
    1,688.37/2,330.10 = 1,059.36/x
  3. Step 3: Cross multiply
    1,688.37x = 2,330.10 × 1,059.36
  4. Step 4: Simplify right side
    1,688.37x = 2,468,414.74
  5. Step 5: Solve for x
    x = 2,468,414.74/1,688.37
  6. Step 6: Final answer
    x = 1,462.01

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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.