Home / 2,385.48-3,289.47-1,887.32

Finding the Fourth Proportional to 2,385.48, 3,289.47 and 1,887.32

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Solution

The fourth proportional to 2,385.48, 3,289.47 and 1,887.32 is: 2,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.48 : 3,289.47 = 1,887.32 : x
  2. Step 2: Convert to fraction form
    2,385.48/3,289.47 = 1,887.32/x
  3. Step 3: Cross multiply
    2,385.48x = 3,289.47 × 1,887.32
  4. Step 4: Simplify right side
    2,385.48x = 6,208,282.52
  5. Step 5: Solve for x
    x = 6,208,282.52/2,385.48
  6. Step 6: Final answer
    x = 2,602.53

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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.