Home / 1,547.54-2,136.58-1,075.28

Finding the Fourth Proportional to 1,547.54, 2,136.58 and 1,075.28

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Solution

The fourth proportional to 1,547.54, 2,136.58 and 1,075.28 is: 1,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.54 : 2,136.58 = 1,075.28 : x
  2. Step 2: Convert to fraction form
    1,547.54/2,136.58 = 1,075.28/x
  3. Step 3: Cross multiply
    1,547.54x = 2,136.58 × 1,075.28
  4. Step 4: Simplify right side
    1,547.54x = 2,297,421.74
  5. Step 5: Solve for x
    x = 2,297,421.74/1,547.54
  6. Step 6: Final answer
    x = 1,484.56

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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.