Home / 1,801.39-2,485.95-1,055.79

Finding the Fourth Proportional to 1,801.39, 2,485.95 and 1,055.79

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Solution

The fourth proportional to 1,801.39, 2,485.95 and 1,055.79 is: 1,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.39 : 2,485.95 = 1,055.79 : x
  2. Step 2: Convert to fraction form
    1,801.39/2,485.95 = 1,055.79/x
  3. Step 3: Cross multiply
    1,801.39x = 2,485.95 × 1,055.79
  4. Step 4: Simplify right side
    1,801.39x = 2,624,641.15
  5. Step 5: Solve for x
    x = 2,624,641.15/1,801.39
  6. Step 6: Final answer
    x = 1,457.01

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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.