Home / 2,896.90-4,345.35-1,803.40

Finding the Fourth Proportional to 2,896.90, 4,345.35 and 1,803.40

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Solution

The fourth proportional to 2,896.90, 4,345.35 and 1,803.40 is: 2,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,896.90 : 4,345.35 = 1,803.40 : x
  2. Step 2: Convert to fraction form
    2,896.90/4,345.35 = 1,803.40/x
  3. Step 3: Cross multiply
    2,896.90x = 4,345.35 × 1,803.40
  4. Step 4: Simplify right side
    2,896.90x = 7,836,404.19
  5. Step 5: Solve for x
    x = 7,836,404.19/2,896.90
  6. Step 6: Final answer
    x = 2,705.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.