Home / 2,890.08-4,315.40-2,298.40

Finding the Fourth Proportional to 2,890.08, 4,315.40 and 2,298.40

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Solution

The fourth proportional to 2,890.08, 4,315.40 and 2,298.40 is: 3,431.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.08 : 4,315.40 = 2,298.40 : x
  2. Step 2: Convert to fraction form
    2,890.08/4,315.40 = 2,298.40/x
  3. Step 3: Cross multiply
    2,890.08x = 4,315.40 × 2,298.40
  4. Step 4: Simplify right side
    2,890.08x = 9,918,515.36
  5. Step 5: Solve for x
    x = 9,918,515.36/2,890.08
  6. Step 6: Final answer
    x = 3,431.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.