Home / 1,583.04-2,189.28-1,386.24

Finding the Fourth Proportional to 1,583.04, 2,189.28 and 1,386.24

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Solution

The fourth proportional to 1,583.04, 2,189.28 and 1,386.24 is: 1,917.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.04 : 2,189.28 = 1,386.24 : x
  2. Step 2: Convert to fraction form
    1,583.04/2,189.28 = 1,386.24/x
  3. Step 3: Cross multiply
    1,583.04x = 2,189.28 × 1,386.24
  4. Step 4: Simplify right side
    1,583.04x = 3,034,867.51
  5. Step 5: Solve for x
    x = 3,034,867.51/1,583.04
  6. Step 6: Final answer
    x = 1,917.11

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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.