Home / 1,801.08-2,485.68-1,055.28

Finding the Fourth Proportional to 1,801.08, 2,485.68 and 1,055.28

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Solution

The fourth proportional to 1,801.08, 2,485.68 and 1,055.28 is: 1,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.08 : 2,485.68 = 1,055.28 : x
  2. Step 2: Convert to fraction form
    1,801.08/2,485.68 = 1,055.28/x
  3. Step 3: Cross multiply
    1,801.08x = 2,485.68 × 1,055.28
  4. Step 4: Simplify right side
    1,801.08x = 2,623,088.39
  5. Step 5: Solve for x
    x = 2,623,088.39/1,801.08
  6. Step 6: Final answer
    x = 1,456.40

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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.