Home / 1,369.32-1,887.36-1,037.64

Finding the Fourth Proportional to 1,369.32, 1,887.36 and 1,037.64

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Solution

The fourth proportional to 1,369.32, 1,887.36 and 1,037.64 is: 1,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.32 : 1,887.36 = 1,037.64 : x
  2. Step 2: Convert to fraction form
    1,369.32/1,887.36 = 1,037.64/x
  3. Step 3: Cross multiply
    1,369.32x = 1,887.36 × 1,037.64
  4. Step 4: Simplify right side
    1,369.32x = 1,958,400.23
  5. Step 5: Solve for x
    x = 1,958,400.23/1,369.32
  6. Step 6: Final answer
    x = 1,430.20

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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.