Home / 2,238.36-3,088.98-1,307.40

Finding the Fourth Proportional to 2,238.36, 3,088.98 and 1,307.40

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Solution

The fourth proportional to 2,238.36, 3,088.98 and 1,307.40 is: 1,804.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.36 : 3,088.98 = 1,307.40 : x
  2. Step 2: Convert to fraction form
    2,238.36/3,088.98 = 1,307.40/x
  3. Step 3: Cross multiply
    2,238.36x = 3,088.98 × 1,307.40
  4. Step 4: Simplify right side
    2,238.36x = 4,038,532.45
  5. Step 5: Solve for x
    x = 4,038,532.45/2,238.36
  6. Step 6: Final answer
    x = 1,804.24

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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.