Home / 2,390.48-3,299.04-1,395.60

Finding the Fourth Proportional to 2,390.48, 3,299.04 and 1,395.60

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Solution

The fourth proportional to 2,390.48, 3,299.04 and 1,395.60 is: 1,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.48 : 3,299.04 = 1,395.60 : x
  2. Step 2: Convert to fraction form
    2,390.48/3,299.04 = 1,395.60/x
  3. Step 3: Cross multiply
    2,390.48x = 3,299.04 × 1,395.60
  4. Step 4: Simplify right side
    2,390.48x = 4,604,140.22
  5. Step 5: Solve for x
    x = 4,604,140.22/2,390.48
  6. Step 6: Final answer
    x = 1,926.03

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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.