Home / 2,900.68-4,001.47-1,836.68

Finding the Fourth Proportional to 2,900.68, 4,001.47 and 1,836.68

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Solution

The fourth proportional to 2,900.68, 4,001.47 and 1,836.68 is: 2,533.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.68 : 4,001.47 = 1,836.68 : x
  2. Step 2: Convert to fraction form
    2,900.68/4,001.47 = 1,836.68/x
  3. Step 3: Cross multiply
    2,900.68x = 4,001.47 × 1,836.68
  4. Step 4: Simplify right side
    2,900.68x = 7,349,395.32
  5. Step 5: Solve for x
    x = 7,349,395.32/2,900.68
  6. Step 6: Final answer
    x = 2,533.68

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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.