Home / 1,349.34-2,015.63-1,130.64

Finding the Fourth Proportional to 1,349.34, 2,015.63 and 1,130.64

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Solution

The fourth proportional to 1,349.34, 2,015.63 and 1,130.64 is: 1,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.34 : 2,015.63 = 1,130.64 : x
  2. Step 2: Convert to fraction form
    1,349.34/2,015.63 = 1,130.64/x
  3. Step 3: Cross multiply
    1,349.34x = 2,015.63 × 1,130.64
  4. Step 4: Simplify right side
    1,349.34x = 2,278,946.25
  5. Step 5: Solve for x
    x = 2,278,946.25/1,349.34
  6. Step 6: Final answer
    x = 1,688.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.