Home / 1,870.40-2,580.36-1,084.16

Finding the Fourth Proportional to 1,870.40, 2,580.36 and 1,084.16

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Solution

The fourth proportional to 1,870.40, 2,580.36 and 1,084.16 is: 1,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.40 : 2,580.36 = 1,084.16 : x
  2. Step 2: Convert to fraction form
    1,870.40/2,580.36 = 1,084.16/x
  3. Step 3: Cross multiply
    1,870.40x = 2,580.36 × 1,084.16
  4. Step 4: Simplify right side
    1,870.40x = 2,797,523.10
  5. Step 5: Solve for x
    x = 2,797,523.10/1,870.40
  6. Step 6: Final answer
    x = 1,495.68

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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.