Home / 2,900.64-4,001.38-1,836.60

Finding the Fourth Proportional to 2,900.64, 4,001.38 and 1,836.60

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Solution

The fourth proportional to 2,900.64, 4,001.38 and 1,836.60 is: 2,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.64 : 4,001.38 = 1,836.60 : x
  2. Step 2: Convert to fraction form
    2,900.64/4,001.38 = 1,836.60/x
  3. Step 3: Cross multiply
    2,900.64x = 4,001.38 × 1,836.60
  4. Step 4: Simplify right side
    2,900.64x = 7,348,934.51
  5. Step 5: Solve for x
    x = 7,348,934.51/2,900.64
  6. Step 6: Final answer
    x = 2,533.56

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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.